Java Native Interface (JNI)
UK

The table below provides summary statistics for permanent job vacancies requiring JNI skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited JNI over the 6 months leading up to 30 May 2025, comparing them to the same period in the previous two years.

6 months to
30 May 2025
Same period 2024 Same period 2023
Rank - - 955
Rank change year-on-year - - +248
Permanent jobs citing JNI 0 0 7
As % of all permanent jobs advertised in the UK - - 0.007%
As % of the Libraries, Frameworks & Software Standards category - - 0.024%
Number of salaries quoted 0 0 7
10th Percentile - - £67,000
25th Percentile - - £75,000
Median annual salary (50th Percentile) - - £80,000
Median % change year-on-year - - +77.78%
75th Percentile - - £95,000
90th Percentile - - -
UK excluding London median annual salary - - £90,000
% change year-on-year - - +100.00%

All Software Libraries and Frameworks
UK

JNI falls under the Software Libraries and Frameworks category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring technical specification, industry standards, software libraries and framework skills.

Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 9,499 21,396 29,097
As % of all permanent jobs advertised in the UK 17.14% 20.72% 29.95%
Number of salaries quoted 5,834 15,919 18,040
10th Percentile £38,750 £36,250 £40,810
25th Percentile £51,250 £45,000 £50,500
Median annual salary (50th Percentile) £66,206 £60,000 £67,500
Median % change year-on-year +10.34% -11.11% +3.85%
75th Percentile £86,250 £78,750 £87,500
90th Percentile £111,250 £100,000 £106,250
UK excluding London median annual salary £60,000 £55,000 £57,500
% change year-on-year +9.09% -4.35% +4.55%

JNI
Job Vacancy Trend

Job postings citing JNI as a proportion of all IT jobs advertised.

Job vacancy trend for JNI in the UK

JNI
Salary Trend

3-month moving average salary quoted in jobs citing JNI.

Salary trend for JNI in the UK